1998 JAGUAR X308 throttle body

6. Reposition the clips which secure the engine harness to the
cam cover.
7. Refit the on-plug ignition coils and the coil cover. Refer to
Operation 18.20.42.

8. Fit the intake tube / air flow meter / air cleaner cover
assembly.
1. Fit a new rubber seal; air in take tube to throttle body.

2. Fit the intake tube / air flow meter / air cleaner cover
assembly.

9. Reconnect the air cleaner cover.
Fit the five clips which secu re the air cleaner cover.
10. Connect the intake tube to the throttle body.
1. Connect the intake tube to the throttle body.
2. Fit the two bolts which secure the intake tube to the

throttle body.
11. Refit the purge valve. Refer to Operation 17.45.01.
12. Reconnect the air flow meter multi-plug.
13. Refit the left hand engine cover.
14. Remove the paintwork protection sheets and close the engine
compartment.

ENSURE THAT ALL FIRE PREVENTION PROCEDURES ARE ACTIVE.
BEFORE PROCEEDING, IT IS ESSENTIAL THAT THE WARNING NOTES GIVEN IN SECTION 100-00 (UNDER THE
HEADING 'SAFETY PRECAUTIONS') ARE READ AND UNDERSTOOD.

9. Depressurise the fuel system.
Ensure that the ignition is switched off and remove the
valve cap from the fuel cross-over pipe. Place a cloth
under the valve to collect any spillage.
Place a closed container, su itable for collecting fuel,
adjacent to the vehicle. Remove the lid.

10. Connect the fuel injection pressure test equipment 310 - 058
(or other suitable type). Insert the drain / bleed tube into the
fuel container. Follow the ma nufacturer's instructions and
depressurise the fuel system.
11. Store the drained fuel safely and ensure that the lid is closed
securely. Remove the equipmen t and discard the cloth from
beneath the valve. Refit the valve cap.

12. Disconnect the breather pipe from the A-Bank camshaft
cover.
1. Disconnect the breather pipe from the stub pipe.
2. Remove and discard the O-ring seal from the breather
pipe.
13. Disconnect the air flow meter multi-plug.
14. Cut and remove the strap which secures the vacuum pipe to
the induction elbow.
15. Disconnect the intake tube from the throttle body.
1. Remove the two bolts which secure the intake tube to the throttle body.
2. Disconnect the intake tube from the throttle body.

16. Disconnect the air cleaner cover.
Remove the five clips which se cure the air cleaner cover.

17. Remove the intake tube / air flow meter / air cleaner cover
assembly.
1. Remove the intake tube / air flow meter / air cleaner
cover assembly.
2. Remove and discard the ru bber seal; air intake tube
to throttle body.

18. Remove the centre trim panel from the engine compartment.
1. Remove the left hand side enclosure panel.
2. Remove the centre trim panel.
19. Release the hoses (Quick Fit connections) from the expansion
tank, using 303 - 623.
1. Release the hose, expansion tank to thermostat housing (coolant outlet pipe on supercharged
engines).

56. Disconnect the fuel feed and return hoses.
1. Disconnect the fuel hoses at the Quick Fit connectors,
using special tool 310 - 044 for the feed hose and
310 - 54 for the return hose.
Disconnect the return hose from the feed hose clip.
Fit blanking plugs to the pipes.

57. Disconnect the pipes from the purge valve.
1. Remove the clip which secu res the part load breather
hose to the purge valve.
2. Disconnect the part load breather hose.
3. Disconnect the vacuum hose from the purge valve and reposition the hose.

58. Disconnect the throttle cable.
1. Secure the cable abutment to the bracket with tape or a ratchet strap, if nece ssary (to save subsequent
adjustment procedure). Remove the bolts which
secure the abutment bracke t to the throttle body.
2. Rotate the butterfly actuator cam and disconnect the cable. Reposition the cable.
59. Disconnect the heater and brake servo hoses.
1. Disconnect the he ater return hose.
2. Release the heater feed hose locking lever and
disconnect the hose.

3. Conne
ct the brake servo hose.

26. Conne
ct the P.I. harness to the engine management
harness.
1. Reposition the engi ne management harness
connector to the bracket.
2. Fit the nut which secures the engine management harness connector to the mounting bracket.
3. Connect the connectors.
4. Fit the bolt which secures the P.I. harness connector to the engine management harness.

27 . Conne
ct the transmission rotary
switch harness connector.
Re
position and connect the harness.

28 . Con
nect the throttle cable.
1. Fit the bolts which secure the abutment bracket to the throttle body. Tighten to 4-6 Nm.
2. Rotate the butterfly actuator cam and connect the cable. Reposition the cable into the cam.
Re
move any tape or plastic
strap which was fitted when
disconnecting the cable abutment.
29. Connect the pipes to the purge valve.
1. Connect the part load breather hose.
2. Fit the clip which secures the part load breather hose
to the purge valve.

to th
e throttle body.

51 . Co
nnect the intake tube to the throttle body.
1. Fit a new seal and connect the intake tube to the throttle body.
2. Fit the two bolts which secure the intake tube to the throttle body.

52 . Conne
ct the air cleaner cover.
F
it
the five clips which secu
re the air cleaner cover.

53 . Re
connect the breather pipe to the A-Bank camshaft cover.
1. Fit a new O-ring seal to the breather pipe.
2. Connect the breather pipe to the stub pipe.
54. Connect the air flow meter connector.
55. Fit a new Ty-strap to secures the vacuum pipe to the
induction elbow.
56. Refill the cooling system. Refer to Operation 26.10.01.
57. NOTE: When the engine is star ted from cold and run for a
short period only, before being swit ched off, a quantity of oil will

I
gnition switch to position 0
1
Di

sconnect EM011
Inside E

CM housing
2
Me

asure the resistance between EM011/009 and
PI004/002.
3
I
s the resistance < 0.5 OHM?
Yes GO to A5
No Inspect harness / connector EM011/009, PI004/002 and
PI001/005 for corrosion, damage , bent or pushed back
pins. Repair as necessary and test the system for normal
operation.
A5: CHECK
HARNESS CONTINUITY
•

NOTE: To avoid a spurious result, disconnect connectors PI042 and PI006 (electronic throttle body) and PI035 (MAF
meter).